[Yaffs] Re: power fail testing

Thomas Gleixner tglx@linutronix.de
Mon, 23 May 2005 17:38:04 +0200


On Mon, 2005-05-23 at 09:37 -0500, Sergei Sharonov wrote:
> > The WP directly controls the internal high voltage charge 
> > pump that drives 
> > the programming. If WP goes low, the hv will droop  and the 
> > programming will not complete reliably.
> > 
> > In most circuits I am familar with, the WP is strapped to Vcc 
> > which would allow in-progress writes to complete.
> 
> Well, I just checked schematic and I did hook WP to global reset
> signal, the one that comes from reset generator. Always thought it 
> was a good idea ;-)

Even if you cut this line you will have a rare chance of corruption and
the filesystem has to handle it.

tglx